Robin van Persie ensured David Moyes got his Manchester United career off to a trophy-winning start, then fired a warning to the rest of the Premier League.

The Dutchman bagged a double as the Red Devils cruised to a 2-0 win over Championship outfit Wigan at Wembley, and Van Persie was in no mood to play down his side’s potential in this coming season.

With Moyes having failed to land a marquee signing this summer, questions have been raised over United’s chances of holding on to their title with the likes of Manchester City and Chelsea reinvigorated by new personnel, but Van Persie

insists it will be a case of business as usual for the country’s most successful club.

‘I cannot explain us being third favourites for the title, I don’t know what that is based on,’ said Van Persie.

Manchester United v Wigan

Manchester United's new manager David Moyes (L) shouts instructions with Wigan Athletic manager Owen Coyle during their English Community Shield soccer match at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United's new manager David Moyes (L) shouts instructions with Wigan Athletic manager Owen Coyle during their English Community Shield soccer match at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United v Wigan

Manchester United's Robin Van Persie celebrates scoring his team's first goal against Wigan Athletic during their English Community Shield soccer match at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United's Robin Van Persie celebrates scoring his team's first goal against Wigan Athletic during their English Community Shield soccer match at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United v Wigan

Goal Decision System cameras at Wembley Stadium during the Community Shield match at Wembley Stadium, London. Sunday August 11, 2013.(Picture: PA)

Goal Decision System cameras at Wembley Stadium during the Community Shield match at Wembley Stadium, London. Sunday August 11, 2013.(Picture: PA)

Manchester United v Wigan

Manchester United's Manager David Moyes raises the trophy after his team won the English Community Shield soccer match against Wigan Athletic at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United's Manager David Moyes raises the trophy after his team won the English Community Shield soccer match against Wigan Athletic at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United v Wigan

Manchester United's Manager David Moyes holds the trophy after his team won the English Community Shield soccer match against Wigan Athletic at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United's Manager David Moyes holds the trophy after his team won the English Community Shield soccer match against Wigan Athletic at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United v Wigan

Manchester United's Manager David Moyes holds the trophy with goal scorer Robin van persie after their team won the English Community Shield soccer match against Wigan Athletic at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)

Manchester United's Manager David Moyes holds the trophy with goal scorer Robin van persie after their team won the English Community Shield soccer match against Wigan Athletic at Wembley Stadium in London, August 11, 2013.
(Picture: Reuters)